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Heater Will Not Fire - A
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“HEATER WILL NOT FIRE - B”
Page 25
Heater should fire on demand
for heat.
Check Fireman’s Switch circuit
connections (time clock, wiring,
external controller relay).
Remove jumper. Check wiring
between Transformer and J7
terminals on Control Board
and between J7 and Fireman’s
Switch on Terminal Board,
check fuse, and restore
continuity.
Restore power to heater.
Replace Transformer.
Heater should fire on demand
for heat.
Replace Control Board.
Replace Membrane Pad.
Check wiring connections
between power supply to
Junction Box and between
Junction Box to Terminal
Board and restore continuity.
Check wiring connections
between Terminal Board and
Transformer primary and
restore continuity.
Is green “SPA” or
“POOL” LED “on”
YES
NO YES
YES
YES
NO
NO
Depress “POOL” or “SPA” ON
button on Membrane Pad.
Does “POOL” or “SPA” LED
come on?
Check for 120 VAC power to
heater.
Check for 24 VAC at sec-
ondary of Transformer.
Check for 120 VAC at primary
to Transformer.
Jumper Fireman’s Switch at
Terminal Board and depress
“POOL” or “SPA” ON button on
membrane pad. Does “SPA” or
“POOL” LED come “on”?
Leaving jumper in place,
check for 24 VAC between
Fireman’s Switch terminals
and ground.
Jumper pins 9 and 8 on J6 of
Control Board. Does “SPA”
LED come on?
Jumper pins 9 and 7 on J6 of
Control Board. Does “POOL”
LED come on?
Remove jumper. Check rib-
bon cable connection
between Membrane Pad and
J6 on Control Board. Depress
“POOL” or “SPA” On pad
again. Does “POOL” or “SPA”
LED come on?
Check for 120 VAC between
“HOT” and “NEUTRAL” termi-
nals on Terminal Board.
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
YES
NO