Flow problem
The board is not seeing enough water moving past the flow or pressure switch. Filter, water level, valves and air lock are the usual suspects.
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Error code indexIt is 10pm, the tub is flashing something you have never seen, and the manual is in a drawer somewhere. Find the code, get a straight answer, and know whether it needs a technician.
The board is not seeing enough water moving past the flow or pressure switch. Filter, water level, valves and air lock are the usual suspects.
Read moreThe switch is reading flow when there should be none. Usually a failed switch rather than a plumbing issue.
Read moreWater temperature at the heater went past the safe ceiling. Take the cover off and let it cool before anything else.
Read moreThe high limit sensor cut the heater. Very often a restricted flow problem in disguise.
Read moreThe board thinks the heater has no water in it. Check level and filter, then reset the breaker once.
Read moreThe tub has detected a low water temperature and is running pumps to protect the plumbing. Normal in a cold snap.
Read moreA temperature sensor is open or shorted. The heater is disabled until it is replaced.
Read moreThe high limit sensor itself has failed. Heater disabled as a safety measure.
Read moreNormal after a refill. The tub is trying to clear air from the plumbing. If it does not clear, you have an air lock.
Read moreWater has drifted well below the set point. Often the first sign of a heating fault, not a fault itself.
Read moreWater level above what the board expects. Common on tubs with a spillover feature after a heavy refill.
Read moreCurrent is leaking to ground. Reset once. If it goes again, stop and call. Do not keep resetting a GFCI.
Read moreCodes and their wording vary between manufacturers, and the same three letters can mean two different things on two different tubs. Treat this as a starting point. If your code is not here, or it comes back after a reset, call it in and we will read it with you.
Electrical work on a spa circuit is licensed work in Michigan and Dr. Spa does not do it. We diagnose everything on the spa side of the disconnect — heater, pumps, sensors, pack and bonding at the tub — and when the fault is in the house wiring or the breaker we tell you exactly what to have a licensed electrician look at. Anything hot, scorched, melted or smelling of burning gets the breaker turned off first and a call second.
Call it in. Dr. Spa has serviced all makes and models since 2001, roughly two dozen brands including packs whose manufacturers no longer exist, and a good share of the time we can tell you over the phone what a code means on your specific tub and whether it needs a technician at all. The symptom checker will also walk you through it if you would rather start with what the tub is doing than with what it is displaying.