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Cold Water Run Troubleshooting Guide
Ste
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9
Ste
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Ste
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10
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Is there a Call For
Heat at the heater?
Is the 220VAC inverter in the
cold run controller powered?
Replace inverter or install jumper
and correct switch settings
Does the cold run inverter output
12VDC from PCS to
p
in FS?
Replace circuit board
Are the Economaster and
Interlock leads connected to
N.O. contacts of relay K-6?
Does cold run relay K-6
coil receive 24VAC from
MC on circuit board?
Are the Economaster
and Interlock leads
connected correctly to
heater CPW board?
Call our Technical Service Department
1-800-927-2975 Outside California
1-800-627-2975 Inside California
NO
Verify 120VAC from
TB1 on the heater
and correct
YES
Does TB1 of cold run
controller have 120
VAC?
Heater is in standby mode
Correct Wiring
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
NO
The unit is okay
YES
NO
YES
Correct wiring
Is the injector pump
modulating after 2-1/2
NO
Correct wiring
YES
Is the heater tripping the high
limit?
YES
NO
Verify pump is rotating in proper
direction
Pump must decrease
RPM’s on decreasing 0-
10VDC signal
YES
Correct 3Ø pump wiring
NO
Is 24VAC present at Poolstat
connection on cold run circuit
board?
Check 24VAC output at J17 of
heater circuit board and correct
Is 0-10VDC present at
connection FR of cold run circuit
board?
NO Replace cold run circuit board
YES
Does cold run circuit board lock-out on
“Sensor out of Range”?
NO
YES
Is sensor resistance correct?
YES
NO
Replace sensor