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Servicing should only be performed by a Qualifi ed Service Agent
TROUBLESHOOTING
TEST 5: CALLING FOR HEAT - NO BLOWER OPERATION
Conditions:
Power on•
Plugs in Receptacles•
Red “ Call for Heat” LED - ON•
Blower (Draft Inducer) off•
Note flash code on ignition control board diagnostic LED.
Water Heater Control - Thermostat
Ignition Control Board
“Call for Heat”
LED Indicator
Diagnostic LED
Indicator
Ground
120
Figure 24
TEST 5
IF......... then............
Pin 1 to ground check has no voltage • reset control by interrupting power. Note possible reasons for this from flashing LED code.
• replace ignition board.
Pin 1 to ground has voltage Proceed
Pin 3 to ground has no voltage • check wiring harness and plugs.
• replace blower.