Lochinvar PVL 07575 Installation And Operating Manual page 51

PROBLEM
SMELLY WATER
CONDENSATION
COMBUSTION ODORS
SMOKING AND CARBON
FORMATION
UNABLE TO LIGHT
THE BURNER
SIZZLING, RUMBLING
NOISE
WATER LEAKAGE
BLOWER WILL
NOT START
100221773_2000189439_Rev. 01
POSSIBLE CAUSE(S)
1. Sulfides in water supply
2. Bacteria in water supply
3. Incompatible anode
1. Filling the new water heater for the first
time
2. Moisture from the products of
combustion
3. Water dripping from blower assembly
4. Undersized water heater
1. Air inlets blocked
2. Insufficient air
3. Flue clogged
4. Heater installed in a confined area
5. House too tight
1. Air inlets blocked
2. Insufficient air
3. Low gas pressure
4. Orifice too large
5. Flue clogged
6. Defective gas control valve/thermostat
7. Heater installed in a confined area
1. Air in gas line
2. Pressure switch
3. Blocked exhaust
4. Wire connection
5. Defective gas control valve/thermostat
1. Scale and sediment
2. Condensation dripping on burner
1. Condensation
2. Dripping Temperature & Pressure
Relief Valve
3. Drain valve dripping/leaking
4. Tank Leak
1. No power to unit
2. Thermostat set too low
3. Defective air pressure switch
4. Defective blower
5. Disconnected or loose wire
6. Control locked out
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CORRECTIVE ACTION
1. Chlorination procedure
2. Chlorination procedure
3. Replace with anode appropriate for
water conditions
1. Normal operation: the condensation
should disappear after heater warms
up
2. Normal operation: the condensation
should disappear in time
3. Install condensate hose to drain port
on the rubber coupling
4. Install adequately sized heater
1. Unblock inlet air openings
2. Provide fresh air ventilation to the
water heater
3. Clean, locate source and correct
4. Provide fresh air ventilation to the
water heater
5. Provide fresh air ventilation to the
water heater
1. Unblock inlet air openings
2. Provide ventilation to water heater.
Check flue way, flue baffle and burner
3. Check with gas utility company
4. Replace with correct orifice (see rating
plate)
5. Clean, locate source and correct
6. Replace gas control valve/thermostat
7. Provide fresh air ventilation
1. Purge the air from gas line
2. Check the pressure switch, make sure
the pressure switch hose is not kinked
3. Check vent pipe for blockage
4. Check wire connections
5. Replace the gas control valve/
thermostat
1. Drain/flush-provide water treatment if
needed
2. Refer to "Condensate" section
1. Refer to "Condensate" section
2. Refer to
"Temperature-Pressure Relief Valve"
section
3. Back flush to clean- out sediment,
replace if necessary.
4. Check "Leakage Checkpoints"
1. Plug in power cord, check fuses and/or
supply voltage
2. Turn temperature knob to higher
setting
3. Replace air pressure switch
4. Replace blower
5. Repair and reconnect wires
6. Refer to "Resetting The Heater Control"
– determine cause of lockout
51