Troubleshooting guide – Maytag HRN4975S User Manual
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TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
These guidelines should be used by a qualified Maytag Customer Service Center Agent. Call the Maytag
Customer Service Center at 1-800-788-8899 for assistance.
Problem
Cause
Solution
Improperly sealed, hot or cold supply connection,
Tighten threaded connections.
relief valve, drain valve, or thermostat threads.
Leakage from other appliances or water lines.
Inspect other appliances near water heater.
Condensation of flue products.
Refer to CONDENSATION.
Thermal expansion in closed water system.
Install thermal expansion tank (DO NOT plug T&P valve).
Improperly seated valve.
Check relief valve for proper operation
(DO NOT plug T&P valve).
High sulfate or mineral content in water supply.
Drain and flush heater thoroughly, then refill.
Bacteria in water supply.
Chlorinate or aerate water supply.
Gas control knob not positioned correctly.
Refer to LIGHTING INSTRUCTIONS.
Main gas supply off.
Turn on main gas shut-off valve.
PILOT WILL NOT LIGHT
Thermocouple malfunction.
Replace pilot assembly and/or thermocouple.
Match not close to pilot.
Locate pilot, move match closer.
Thermocouple malfunction.
Replace pilot assembly
and/or thermocouple.
Defective Gas Control.
Replace Gas Control.
Dirty pilot burner.
Clean pilot assembly.
Thermocouple tip is not in contact with pilot flame.
Insert thermocouple correctly.
PILOT OUTAGE
Thermocouple malfunction.
Replace pilot assembly and/or thermocouple.
Defective Gas Control.
Replace Gas Control.
Heater not lit or thermostat not on.
Refer to LIGHTING INSTRUCTIONS.
Thermostat set too low.
Refer to TEMPERATURE REGULATION.
Heater undersized.
Reduce hot water use.
NOT ENOUGH
Low gas pressure.
Contact your gas supplier.
HOT WATER
Incoming water is unusually cold.
Allow more time for heater to re-heat.
Leaking hot water pipes or fixtures.
Have plumber check and repair leaks.
High temperature limit switch activated.
Contact a Maytag Customer Service Agent to
determine cause.
WATER TOO HOT
Thermostat set too high.
Refer to TEMPERATURE REGULATION.
WATER HEATER SOUNDS
Condensation dripping on burner.
Refer to CONDENSATION.
Sediment or calcium in bottom of heater tank.
Clean sediment from tank. Refer to DRAINING
instructions in Maintenance section of manual.
Improper combustion.
No adjustment available. Contact a Maytag Customer
Service Agent
to determine cause.
Lack of supply air.
Improperly installed vent piping.
Contact a Maytag Customer Service Agent to determine
Downdraft.
cause.
Poor combustion.
SOOTING
WATER LEAKS
LEAKING T&P VALVE
SMELLY WATER
VENT GAS ODORS
SIZZLING - RUMBLING
BURNER WILL NOT
STAY LIT