18
Electronic Ignition Water Heater
(continued)
Effective: 5/26/98
CAUSE
SOLUTION
EXCESSIVE OR INSUFFICIENT WATER TEMPERATURES
By-pass kit valves not set properly
----------------------------
Place valves in proper position
Thermostat not seated against tank
----------------------------
Reseat thermostat
Defective thermostat
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Replace thermostat
ERRATIC BURNER FLAME OR SOOTING
Low gas pressure
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Set inlet pressure at a minimum 11˝ W.C. with two or more gas
appliances running
Poor gas supply
--------------------------------------------------
Replace gas supply
Improper air adjustment
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Adjust main burner air shutter approximately 1/4 way open. Flame
should be mainly blue and quiet.
Poor main burner alignment
------------------------------------
Adjust valve and main burner alignment
Misaligned burner flame spreader
------------------------------
Align flame spreader so it is square with end of burner tube.
Blocked burner orifice
--------------------------------------------
Clean orifice. DO NOT enlarge orifice
Obstructed main burner
------------------------------------------
Clean main burner
Obstructed “U” tube
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Clean “U” tube
Obstructed exhaust grille
----------------------------------------
Remove obstruction
NO SPARK AND NO GAS
No voltage
--------------------------------------------------------
Correct power supply - minimum 10.5 VDC
Dirty edge connector on circuit board
--------------------------
Clean edge connector
Defective thermal cut-off
----------------------------------------
Replace thermal cut-off
Defective ON/OFF switch
----------------------------------------
Replace switch
Defective circuit board
--------------------------------------------
Replace circuit board
Defective thermostat
----------------------------------------------
Replace thermostat
