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Troubleshooting Guide (cont'd)
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NOT ENOUGH
HOT WATER
VENT PIPE TOO HOT
(ABOVE 17O°F)
YELLOW FLAME
CONDENSATION
WATER LEAKS
LEAKING T&P
HOT WATER ODORS
(Refer to SMELLY WATER)
WATER TOO HOT
WATER HEATER SOUNDS
SIZZLING-RUMBLING
SOOTING
HEATER LIGHTS BUT GOES
OUT IN 4-5 SECONDS
Blower will not run.
A) "ON/OFF" control switch turned off.
B) Blower unplugged.
C) No power at outlet.
D) Thermostat defective.
E) Control harness defective.
F) High limit control circuit open.
G) Blower motor defective.
Thermostat problems.
A) Thermostat set too low.
B) Thermostat or ECO defective.
Others
A) Heater undersized.
B) Low gaspressure.
C) Incoming water is unusuallycold.
D) Leakinghot water pipesor fixtures.
A) Not enoughdilution air to mix with
flue gases.
B) Dilution air too hot for mixing with
flue gases.
C) Wrong burner orifice.
A) Dirt in burner ports
B) Combustion air path restricted.
C) Not enough dilution air.
A) Water on the floor under heater.
B) Water dripping from blower assembly.
Improperly sealed,hot or cold supply
connections, relief valve,drain valve
or thermostat threads.
Leakagefrom other appliancesor water
lines.
Condensation of flue products.
Thermal expansion in closed water
system.
Improperly seatedvalve.
High sulfate or mineral content in
water supply.
Bacteria in water supply.
Thermostat set too high.
Condensation dripping on burner.
Sediment at bottom of heater tank.
Improper combustion.
Outlet polarity is reversed.
Turn switch to the "ON" position.
Plugblower back into 115VAC. outleL
Repairservice to outlet.
Replacethermostat.
Replacecontrol harness.
Replace ECO.
Replace Blower Assembly.
Set temperature control highe_
Replacethermostat or ECO as required.
Reducehotwateruse.
Contact dealer.
Allow more time for heater to reheat.
Haveplumber check and repair leaks.
Proper dilution air must be provided for dilution of flue
temp. Referto "INSTALLATION INSTRUCTIONS"
section.
Check for heat sources around and/or blockage of
dilution air intake at draft hood (see page 28).
Install correct orifice.
Turnoffheaterandgas,dean burnerhead.
Check dilutionairintake,exhaustventing,andair
openingsinbottombasepanforobstructionsor
blockage.
Check dilution air intake for obstructions or
blockage.
See "CONDENSATION" section.
Provide drip "TEE" to catch condensation from horizon-
tal section of exhaust vent close to blower assembly.
Tighten threaded connections.
Inspect other appliances near water heate_
See "CONDENSATION" section.
Install thermal expansion tank (DO NOT plug
T&P valve).
Check relief valvefor proper operation
(DO NOT plug T&P valve).
Drain and flush heater thoroughly then refill.
Chlorinate water supply.
Refer to TEMPERATUREREGULATION.
See "CONDENSATION" section.
Clean sediment from tank. Refer to DRAINING
instruction in Maintenance section of manual.
Refer to COMBUSTION AIR AND VENTILATION
on pages I0, I I, and 12.
Test polarity and correct.
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