TGIF Posted June 10, 2009 Report Share Posted June 10, 2009 Hello folks, hoping someone can help me out. I have an older model Cal Spas 1995 tub. Everything seems to be working fine except the heater contactor (or is it called relay?) which is supposed to engage when low speed kicks in. I can push the plastic tabs in on the contactor manually and the heater will start heating. When I turn the temperature gage topside low speed kicks in but the heater contactor doesn't engage. Could be the heater and/or low speed contactors are wired incorrectly? I took it in a tune up last fall and I think the tech may not have wired it properly. Ideally I'd like to get a wiring diagram, but can't find one anywhere. Service dealers don't want to touch it and receommend I buy a new pump & controls. I may have to...I just want to make sure everything is wired properly first. Any advice would be appreciated. Quote Link to comment Share on other sites More sharing options...
ps558 Posted June 10, 2009 Report Share Posted June 10, 2009 Hello folks, hoping someone can help me out. I have an older model Cal Spas 1995 tub. Everything seems to be working fine except the heater contactor (or is it called relay?) which is supposed to engage when low speed kicks in. I can push the plastic tabs in on the contactor manually and the heater will start heating. When I turn the temperature gage topside low speed kicks in but the heater contactor doesn't engage. Could be the heater and/or low speed contactors are wired incorrectly? I took it in a tune up last fall and I think the tech may not have wired it properly. Ideally I'd like to get a wiring diagram, but can't find one anywhere. Service dealers don't want to touch it and receommend I buy a new pump & controls. I may have to...I just want to make sure everything is wired properly first. Any advice would be appreciated. sounds like something is wrong at the contactor coil. The coil is what pulls the contactor in to start heating. There should be a wire on each side. Maybe one is off or both are on the same connection Quote Link to comment Share on other sites More sharing options...
TGIF Posted June 10, 2009 Author Report Share Posted June 10, 2009 Hello folks, hoping someone can help me out. I have an older model Cal Spas 1995 tub. Everything seems to be working fine except the heater contactor (or is it called relay?) which is supposed to engage when low speed kicks in. I can push the plastic tabs in on the contactor manually and the heater will start heating. When I turn the temperature gage topside low speed kicks in but the heater contactor doesn't engage. Could be the heater and/or low speed contactors are wired incorrectly? I took it in a tune up last fall and I think the tech may not have wired it properly. Ideally I'd like to get a wiring diagram, but can't find one anywhere. Service dealers don't want to touch it and receommend I buy a new pump & controls. I may have to...I just want to make sure everything is wired properly first. Any advice would be appreciated. sounds like something is wrong at the contactor coil. The coil is what pulls the contactor in to start heating. There should be a wire on each side. Maybe one is off or both are on the same connection Thats what I think is the problem...there's black, blue, red and white wires on the sides and top and bottom. I have a picture I can email if that would help. Quote Link to comment Share on other sites More sharing options...
medicineman Posted June 10, 2009 Report Share Posted June 10, 2009 You have to apply power to the contactor to get it to magnetize. If you don't have (usually 120v) at the contactor, then you have to close the circuit. There should be a high limit, pressure switch , thermostat in the circuit that you need to check continuity through. Quote Link to comment Share on other sites More sharing options...
TGIF Posted June 11, 2009 Author Report Share Posted June 11, 2009 You have to apply power to the contactor to get it to magnetize. If you don't have (usually 120v) at the contactor, then you have to close the circuit. There should be a high limit, pressure switch , thermostat in the circuit that you need to check continuity through. I'll check....if there is continuity through the pressure switch, thermostat and high limit I would assume the circut isn't closing. Are the connectors at the top and sides of the contactor for 120v? How do I wire it to close the circut? Quote Link to comment Share on other sites More sharing options...
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