I have a Balboa WH-R576-DCAH. All controls seem to operate ok but no heat. Both motors seem ok, pulling about 5amps each. Not an expert but was able to manualy close the relay and cause the heater to operate with about a 6 amp draw. Was told to bridge out pressure switch circuit but no change. No error messages on display. From what I read the other two inputs on that board are the thermostat and a high limit (?) switch. Any thoughts would be appreciated.

What model of balboa control do you have?
Will it come right back on after power down / power up?
Does it have a mechanical time clock?
Is temperature of water Hot?
when temp control is scaled down, will it turn off?
what do you mean - Temp ok?
If a mechanical time clock, pull the wires off of terminal 3 & 4,
isolate them! They will be HOT.
1 & 2 are for the timers internal 24 Hr. Motor.
but... First turn power off!
Turn power back on, if pump stays off, bad timer.

Hi,

There are some things to check.
Make sure the vents on your cabinet are not obstructed.
Make sure your filter cycle is not too long
Make sure you are not running high speed for more then 30 mins.

Have you looked through the Balboa error message site. I have attached a link follow your error through and you may find your answer. Diagnostic Messages

yes it is possible

remove both copper ends that are mounted to the heating element. reset gfci and turn power back on.

SEE IF YOU CAN FIND A NEW THERMISTOR THERE NOT THAT MUCH MONEY AND A GRAVY FIX ! ALSO DEPENDING,YOU MIGHT BE ABLE TO CLIP OR ATTACH A HEAT SINK TO THE PROBES HOUSING THIS WILL HELP BLEED OFF SOME OF THE HEAT FOOLING THE THERMISTOR .. YOU MIGHT HAVE A FLOW PROBLEM ALSO MAKE SURE THE PUMPS IMPELLER IS FREE OF DEBRIS
JAY THE POOL PUMP MOTOR REPAIR GUY LONGWOOD FLORIDA 32750 FREE MOTOR AND CAPACITOR TESTING !

Kathy,

I think what you're looking at are the part numbers for the heater and control systems used in some Jacuzzi hot tubs rather than the Jacuzzi model number. I ran into the same issue and discovered through some cross-referencing on the web (jacuzzi parts suppliers) that this is the part number control unit made by Balboa. Odds are they were used in multiple Jacuzzi models.

My suggestion: Look here http://clearcreekspas.com/model_id.html to identify the control panel for your Jacuzzi and then follow the link to the correct manual. Some cover multiple models so you will need to know the electrical requirements of yours (120 V or 240 V?) and then check the layout of each tub shell to determine which model is yours.

I figured out mine is a Jacuzzi Essence Model 350 this way.

Good luck!