Table of Contents
Advertisement
TROUBLESHOOTING
Does the power switch provide
power to the control panel?
Step 1
YES
YES
Step 2
Is Disable connection intact?
YES
Does the combustion air
Step 3
blower come on?
Is 4-20mA present at the quick
disconnects on the black and blue
wires of the tem perature controlle r?
YES
Is 24VAC at the NC side of
Step 4
the air pressure switch?
YES
Is 24VAC at PS on ignition module?
Step 5
Is connecting plug secure?
YES
Ste p 6
Does igniter prove?
YES
Ste p 7
Is the flame sensor signal to the
ignition module greater than 1 uA DC?
YES
Ste p 8
Is the unit runnin g?
YES
Ste p 9
The unit is oka y
All manuals and user guides at all-guides.com
NO
Is there a Call For
Heat?
NO
Reattach.
Is there 120VAC at the blower or
NO
blower relay?
YES
NO
YES
Does F2 on ignition module
NO
have AC powe r?
Is blower pressure setting
NO
NO
Is Amp draw during heat-
NO
up for HSI greater than
3.1 Amps?
YES
NO
Is static and dynamic inlet gas
pressure correct?
YES
NO
Call our Technical Service Department
1-805-278-5300
Check the switch and/or
line voltage
NO
Unit is in standby mode.
NO
Is diagnostic board
indicating open
safeties?
YES
Is there continuity in the wire
between F2 and Pin J5-6?
NO
(vacuum) correct?
YES
Replace air pressure switch.
Correct wiring.
NO
Is air switch bouncing?
Is gas pressure correct?
YES
NO
48
Check and correct power
connections at main terminal
block, circuit breaker panel or
blower relay.
Replace temperature
NO
controller.
Correct Safety
Repair or
NO
Replace wire.
Correct the shutter
setting or blower
amp draw.
Replace HSI
NO
YES
NO
Correct the gas pressure.
Advertisement
Table of Contents
