Diagnose Home Repair Symptoms Room by Room · Page 5

Symptom Guides · landscaping

French Drain Backs Up in Heavy Rain

A French drain outlet blocks during heavy rain because silt, leaves, roots, or debris pack the discharge end (the daylight point or pop-up emitter), so water backs up faster than the choked outlet can release it.

Symptom Guides · electrical

Generator Overload Shutdown in Winter

A whole-house generator hits winter overload shutdown when heating loads (furnace, well pump, space heaters) and their startup surges exceed the unit's output. Fix it by shedding non-essential circuits, adding a load management module, or repairing a weak capacitor or governor.

Symptom Guides · hvac

Attic Fan Not Pulling Air in Summer

Your attic exhaust fan isn't pulling air because of a failed thermostat that won't trigger the fan, a stalled or slow motor from a bad capacitor, a broken belt on belt-drive units, or blocked soffit intake vents that starve the fan of makeup air.

Symptom Guides · hvac

Attic Fan Running, Humidity Still High?

Your attic humidity stays high because the exhaust fan can't pull fresh air in (blocked soffit vents), the humidistat is set too high or failed, or moisture is entering the attic from bathroom fans, roof leaks, or the crawlspace below.

Symptom Guides · hvac

Attic Fan Wiring Suddenly Overheating?

Attic exhaust fan wiring overheats when a connection loosens, the wire is undersized for the motor's draw, or a failing motor pulls excess current. Shut the circuit off at the breaker and inspect before running it again.

Symptom Guides · plumbing

Well Faucets Sputtering Air?

Intermittent sputtering faucets on a well system are caused by air in the water lines, most often from a waterlogged pressure tank, a well water level dropping below the pump intake, or an air leak on the suction side of the pump.

Symptom Guides · plumbing

Well Pump Pressure Getting Worse?

Worsening well pump water pressure is most often caused by a waterlogged pressure tank, a clogged pump intake, or a drifting pressure switch, and the fix ranges from a free air-charge adjustment to a pump replacement.

Symptom Guides · plumbing

Sediment in Older Home Well Water

Sediment in an older home's well water is usually caused by a dropping water table, a worn well screen, a pump set too deep near the well bottom, or corroding galvanized pipe. A settling jar test tells you whether the source is the well or the plumbing.

Symptom Guides · plumbing

Upstairs Pressure Loss: Bladder Tank

Your pressure tank's bladder has probably failed, so it can't hold an air cushion. Upstairs fixtures lose pressure first because height eats psi, and the collapsed pressure range starves them.

Symptom Guides · plumbing

Pressure Tank Leak at a Downstairs Fitting

Your pressure tank is leaking at a downstairs fitting because a threaded joint has loosened or corroded, usually on the tank tee where the gauge, switch, and drain connect. Downstairs fittings carry the highest system pressure, so they fail first.

Symptom Guides · electrical

Doorbell Dead in Winter? Here's Why

Your doorbell chime stops working in winter usually because a weak transformer finally fails or the exterior button corrodes and shorts from freeze-thaw moisture. Test the transformer for 16 to 24 volts AC, then check the button.

Symptom Guides · electrical

Doorbell Transformer Buzzing in Summer

Your doorbell transformer buzzes louder in summer because heat expands the metal laminations inside the coil, worsening normal 60Hz AC hum. A stuck doorbell button or an aging, overheating transformer are the common culprits.

Symptom Guides · electrical

Video Doorbell Low Power Fix

Your video doorbell shows low power because the doorbell transformer can't deliver enough voltage or wattage. Most need 16-24V AC and 10 VA or more, while older transformers only put out 8-10V at 5 VA.

Symptom Guides · hvac

Radiant Floor: Sudden Cold Zones

Sudden cold zones on radiant floor heat are usually caused by trapped air in a heating loop, a stuck zone valve, or a failing circulator pump that stopped moving warm water through that section.

Symptom Guides · hvac

Radiant Pump Won't Circulate Steady

A radiant floor pump that runs intermittently is usually air-locked, cycling on thermal overload, or losing power from a loose connection or failing capacitor. Bleed the loops, check the wiring, and listen for a hum without spin before replacing the circulator.

Symptom Guides · hvac

Radiant Floor Heat Keeps Overshooting

Your radiant floor heat overshoots because the slab keeps releasing stored heat after the thermostat stops calling, and a stat without floor sensing or proper cycle tuning can't compensate. It worsens as sensor calibration drifts or settings shift.

Symptom Guides · hvac

Radiant Manifold Leak in an Older Home

Your radiant floor manifold is leaking because an aging O-ring, corroded fitting, or loose compression connection has failed. In homes over 15 years old, brittle rubber seals are the most common cause.

Symptom Guides · windows

Bay Window Center Pane Foggy in Winter

Your bay window's center pane fogs in winter because warm indoor moisture hits cold glass (surface condensation you can wipe off) or the sealed double-pane unit has lost its seal (fog trapped between panes you can't wipe off).

Symptom Guides · windows

Bay Window Seat Board Rot in Summer

Your bay window seat board rots in summer because warm humid air condenses on the cooler glass and drips onto the flat wood shelf, which holds moisture long enough to break down the board, especially if drainage or ventilation under the seat is blocked.

Symptom Guides · appliance

Freezer Cold but Fridge Warm

Your freezer is cold but the fridge is warm because the cold air can't move from the freezer to the fridge. It's usually a frost-blocked evaporator coil, a failed evaporator fan, or a stuck air damper.

Symptom Guides · appliance

Refrigerator Runs Constantly, Won't Shut Off

A refrigerator runs constantly most often because dirty condenser coils or a bad door seal force the compressor to work nonstop. Clean the coils and check the gasket first; if it still won't cycle off, suspect the defrost system or a refrigerant issue.

Symptom Guides · appliance

Water Pooling Under a Refrigerator

A refrigerator leaks water underneath most often because of a clogged defrost drain that backs up inside the unit, a full or cracked evaporation pan, or a leaking water supply line to the ice maker or dispenser.

Symptom Guides · appliance

Fridge Freezing Food in Fresh Section

A refrigerator freezes food in the fresh food section when the temperature is set too cold, the air damper is stuck open, or a failed thermistor reports the wrong temperature and makes the compressor run too long.

Symptom Guides · appliance

Ice Maker Stopped Making Ice

An ice maker usually stops making ice because it's switched off, the water supply is shut or restricted, or the fill tube has frozen shut. Start by confirming the shutoff arm is down and water actually reaches the unit.

Symptom Guides · appliance

Dryer Needs Two Cycles to Dry Clothes

A clothes dryer taking two full cycles to dry is usually caused by restricted airflow from a clogged lint screen or a lint-packed vent duct. Clean both first; if it persists with clear venting, suspect a weak heating element or a failing thermostat.

Symptom Guides · appliance

Dryer Smells Hot or Burning?

A dryer that smells hot or burning is usually overheating from clogged lint in the vent or trap, a slipping drive belt, or a failing motor. Turn it off, unplug it, and inspect the lint path before running it again.

Symptom Guides · appliance

Washing Machine Won't Drain

Your washing machine won't drain because something is blocking the drain path or the drain pump failed. Check the pump filter, drain hose, and lid switch first; those account for most no-drain problems.

Symptom Guides · appliance

Washer Leaking From the Bottom?

A washing machine leaks from the bottom most often because of a loose drain or fill hose connection, a worn water pump seal, or a torn door gasket on front-load models.

Symptom Guides · appliance

Oven Won't Heat but Stovetop Works

Your oven and stovetop run on separate circuits inside the range, so a cold oven with a working stovetop points to a failed oven part, most often a burned-out bake element, a blown thermal fuse, or a bad control board.

Symptom Guides · roofing

Granules in Gutters From Shingles?

Granules collect in gutters from normal shingle aging, storm impact, or a roof nearing the end of its life. Light loss on a new roof is normal; heavy or ongoing loss with visible bald spots means the shingles are failing.

Symptom Guides · roofing

Roof Leaks Only in Wind-Driven Rain

An asphalt shingle roof that leaks only in wind-driven rain usually has a gap that water can't reach in vertical rain but can when it's pushed sideways or uphill: lifted shingle tabs, failed flashing overlaps, or exposed nails. The wind direction points to the failed area.

Symptom Guides · roofing

Missing or Blown-Off Asphalt Shingles

Asphalt shingles blow off when their self-seal adhesive strip fails, nails are set too high or overdriven, or the shingles are simply old and brittle. Wind exploits the weak bond and peels tabs back.

Symptom Guides · roofing

Chimney Flashing Leaks After Storms

Your chimney leaks after storms because the flashing where the chimney meets the roof has failed. Wind-driven rain gets behind loose counterflashing, cracked sealant, or improperly installed step flashing and runs into the attic.

Symptom Guides · foundation

Stair-Step Cracks in Brick Veneer

Stair-step cracks in basement brick veneer usually signal foundation settlement or soil pressure pushing on the wall. Cracks under 1/8 inch are often cosmetic, but anything wider or growing needs a foundation contractor.

Symptom Guides · foundation

Slab Floor Sloping Toward a Wall

Your concrete slab floor slopes toward an exterior wall because the outer edge of the foundation has settled, typically from soil shrinkage, poor drainage, or a slab plumbing leak. It's a foundation problem that needs a pro to assess.

Symptom Guides · foundation

White Powder on the Basement Wall

White chalky powder on a basement wall is efflorescence, mineral salt deposits left behind when water passes through concrete or block and evaporates. It signals moisture intrusion, not structural damage by itself.

Symptom Guides · appliance

Dryer Runs But Not Heating?

A clothes dryer that tumbles but won't heat usually has a failed heating element, a blown thermal fuse, or a gas ignition fault. On electric models, check for a half-tripped 240V breaker first.

Symptom Guides · appliance

Dryer Vent Hose Crushed or Clogged

Your dryer vent hose is crushed usually because the dryer sits too close to the wall and pinches the hose, or it's clogged with lint that's been building up over months. Both restrict airflow and force longer drying times.

Symptom Guides · water-heater

Hot Water Runs Out Way Faster Now

A tank water heater that runs out of hot water faster than it used to is usually caused by sediment buildup reducing tank capacity, a failed lower heating element on electric models, or a cracked dip tube. Most of these are diagnosable and repairable for $200–$800.

Symptom Guides · water-heater

Water Heater T&P Valve Dripping

Your water heater's T&P valve drips because pressure or temperature inside the tank exceeded its rating (usually 150 psi or 210°F), or because the valve has worn out. It's a safety device working as designed, so never plug it. Find and fix the root cause.

Symptom Guides · water-heater

Hot Water Smells Like Rotten Eggs?

Your hot water smells like rotten eggs because sulfate-reducing bacteria in the tank react with the magnesium anode rod to produce hydrogen sulfide gas. Replacing the anode rod and disinfecting the tank usually fixes it.

Symptom Guides · roofing

Water Behind Gutter, Down the Fascia

Water runs behind a gutter mainly because the roof edge lacks a drip edge to direct runoff into the trough, or because a clogged gutter is overflowing backward. Both let water soak the fascia and soffit.

Symptom Guides · roofing

Downspout Dumping Water By Foundation

Your downspout dumps water next to the foundation because it lacks an extension, the extension is disconnected or damaged, or an underground drain line is clogged. Redirecting the water 4 to 6 feet from the house solves it in most cases.

Symptom Guides · sump-pump

Sump Pump Runs, Water Won't Drop

A sump pump that runs without lowering the water level almost always has a blocked discharge path: a stuck check valve, a clogged or airlocked impeller, or a frozen exterior pipe.

Symptom Guides · sump-pump

Sump Pump Bangs When It Shuts Off

A loud bang when your sump pump shuts off is water hammer, caused by the check valve slamming shut as the water column stops. Replacing the stock check valve with a soft-close model or adding a water hammer arrestor usually fixes it for $40–$200.

Symptom Guides · chimney

Cold Draft Pouring Down the Chimney

A cold draft pours down an unused chimney when warm household air escapes upstairs and pulls cold outside air in through a leaky damper or open flue. Sealing the damper or adding a top-sealing cap usually stops it.

Symptom Guides · chimney

Smoky Smell on Humid Days? Chimney

A smoky smell on humid days comes from creosote buildup in the chimney flue absorbing moisture and off-gassing back into the house, often made worse by negative air pressure pulling flue air down into the room.

Symptom Guides · insulation

Frost on Attic Roof Sheathing

Frost on attic roof sheathing forms when warm, humid air from your living space leaks up into a cold attic and condenses, then freezes, on the wood. Air-seal the ceiling and improve attic ventilation to stop it.