Specification

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Troubleshooting
Troubleshooting
Wiring Diagrams
Aquastat Relay CheckoutCK’s, PVG, PVO, CAS
1. Using your meter, check voltage between L1 and ground.
You should have 120 volts all time. If you do not have 120 volts
all the time, the wiring is wrong or your breaker is off.
2. Using your meter, check voltage between B1 and B2. You
should have 120 volts (oil) or 24V (gas) when there is a call for
heat. If you do not have 120 volts (oil) or 24V (gas) when there
is a call for heat, you have a bad aquastat or thermostat.
Test #2
B
1
L1 L2
B2
Test #1
Ground
Ground
Volt Meter
Volt Meter
Always
120 VAC
0 Volts
Ground
Volt Meter
0 Volts
120V(Oil) or 24V(Gas)
When Call For Heat
Black
Black
Black
Black
Red
Red
Red
Red
A
quastat Relay Check Out
1. Using your meter, check voltage between L1 and ground. You
should have 120 volts all the time. If you do not have 120 volts
all the time, the wiring is wrong or your breaker is off.
2. Using your meter, check voltage between B1 and B2. You
should have 120 volts (oil) or 24V (gas) when there is a call for
heat. If you do not have 120 volts (oil) or 24V (gas) when there
is a call for heat, you have a bad aquastat or thermostat.