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HL display on my hot tub

I have an arctic spa and the read displays "HL" and the unit pump and heater will not turn on

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4 Suggested Answers

Ian  Hot Tub
  • 77 Answers

SOURCE: Arctic Spa refill and a heater alarm ''HL''

You may have a Spa Builders control system which was commonly used by Arctic Spas throughout their range.

Turn the hot tub off at the mains to reset it. If 'HL' returns again on the display you need to feel the heater tube. If the heater tube is not hot either, you have most likely got a faulty hi limit temperature probe (attaches to the heater), or a faulty PCB.

It might also be wothwhile checking the hi-limit probe connection on the PCB, these have been known to corrode and cause errors before.

The temperature probe is the cheapest item so try replacing this first.

Kind Regards,
Ian Kime.

http://hottub.synthasite.com

Posted on May 15, 2010

PartsCenter
  • 125 Answers

SOURCE: Arctic Spa refill and a heater alarm ''HL''

HL is an error code. You will want to check out the link below to the mfg wesite. Balboa Water Group

Posted on Feb 26, 2009

  • 3 Answers

SOURCE: Panel reads "water sensor opened"

I had the same problem. The water sensor is on a pipe running into your pump. It will have a circular clamp around it. Remove the clamp and pull the sensor out of the pipe. The wires should run into your control box. disconnect the wires and replace. My water sensor was part 7790. Not sure if you have the same one. Do an online search. bestbuypoolsupply.com has them for $50 plus 9 for shippng. Hope this helps.

Posted on Mar 12, 2009

  • 19 Answers

SOURCE: pool and spa heater will not turn on, low pressure on display

1) check the fuse on the transformer. You will get "low pressure" if the fuse is blown.
1a) remove front panel with flat head screw driver turning both big screws 1/4 turn clockwise
1b) look up under the 1 remaining front piece for 2 screws (one on each side). remove them and the 1 small panel slides down
1c) transform is directly in the center of this compartment
1d) red wire on transform has a black fuse case - twist open and check fuse (with an ohm meter it should read a dead short if it is working).
1e) if not working - replace with standard 250v 2a bus fuse.
2) it really is low pressure
2a) backwash pool or at least make sure pressure in filter take is not too high (high filter tank pressure == low water pressure in heater)
2b) if you have a bypass valve make sure it is not in bypass mode so most all pressure from the pump is going tothe heater
2c) right next to the transformer is the pressure switch. It has a small copper tube attached to the back and 2 wires in the front. Put an ohm meter across the two leads on this device. With the filter off it should be open, with the filter on it should be closed (short). If not either the copper tubing is clogged, the switch is faulty, or there is not enough water going through the heater. The amount of water that goes into the heater is adjustable and the water pressure switch is also adjustable. The owners manual explains how to adjust both but neither should need adjustment unless you have a special configuration (explained in the manual).

Posted on Sep 20, 2010

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Arctic Spa refill and a heater alarm ''HL''


HL is an error code. You will want to check out the link below to the mfg wesite. Balboa Water Group

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