Hd Troubleshooting - Raypak HI DELTA HD101 Installation & Operating Instructions Manual

Does the main power switch provide
power to the green power LED?
Step 1
YES
Is there a Call For Heat?
Step 2
YES
Does the Pump come on?
Step 3
YES
Does the combustion air
Step 4
blower come on?
YES
Is 24VAC at the NC side of
Step 5
the air pressure switch?
YES
Step 6
Is 24VAC at PS on ignition module?
Is connecting plug secure?
YES
Does igniter prove?
Step 7
YES
Is the flame sensor signal to the
Step 8
ignition module greater than 1 uA DC?
YES
Step 8
Is the unit running?
YES
Step 9
The unit is okay

HD Troubleshooting

Is Disable connection intact?
YES
NO
Is there 120VAC at the pump or
NO
Is there 120VAC at the blower or
NO
blower relay contacts 1 and 5?
NO
NO
Is Amp draw during heat-
up for HSI greater than
NO
YES
NO
Is manifold gas pressure
NO
Call our Technical Service Department
1-800-947-2975 Outside California
1-800-627-2975 Inside California
Check the switch, transformer
NO
and/or line voltage
NO
Is temperature controller
installed?
pump relay contacts?
Is blower pressure setting
correct?
YES
Correct wiring.
NO
3.1 Amps?
Is air switch bouncing?
Is inlet gas supply pressure
correct?
YES
NO
correct?
Replace gas valve
YES
35
Reattach.
NO Install.
Check and correct power
connections at main terminal
NO
block, circuit breaker panel or
pump relay.
Check and correct power
connections at main terminal
NO
block, ignition module, circuit
breaker panel or blower relay.
Correct the blower
NO
shutter setting.
Replace air pressure switch.
Replace HSI
NO
YES
NO
Correct inlet gas supply pressure
Adjust manifold gas
pressure.