Question about Hayward H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1

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How does heater work to keep freeze off pool in winter

Since temps are dropping at night, pool often turns on and water circulates. Last night, pump running, no water circulation. Is this the heater? does it run on electricity or gas? I have inherited this home and pool. Propane tank is empty. do I need it filled to keep pool from freezing in winter?

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What state do you live in, what is the brand name and model number of the heater. If you live in a state that gets cold during the winter, call you local pool store and schedule a closing. If the pump is running and water is not circulating, most likely the pump lost prime or your filter needs to be backwashed, or there is some debris in the impeller.

Posted on Jan 08, 2009

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It has been in the 20's here we normally shut down pool heater but keep pump running. I tried to start the heater and get the SMS error. When temps get back into to 60's it should be fine again right?


Actually it should be working again when the water temperature gets above about 36*F. Keep that pump running and pay attention to it. Running water can freeze if it stays in the 20's for a few days.

Dec 09, 2013 | Raypak Pool & Spa

2 Answers

Heat pump?


There could be several issues at work here.


  • First, is the heat indicator light showing on the topside?
  • Is the pump running but temp is not rising?
  • Any error codes displayed on the topside panel?

The drop in water temperature could be caused by a faulty temp sensor or faulty high limit sensor.

Check those items out and see what you come up with.

Rod
US Parts Center
888-521-6183

Mar 14, 2013 | Pool & Spa

1 Answer

Pool spa heater when freezing temp


It normally will heat up with pump moving water, once the threshold is achieved - system will come out of its Freeze protection mode and will begin to work as programmed. If there is a heat call, heater will come on.
You can also locate the sensors, both the Water & Air (they need to be very close in temperature for this to work) then place them in water warmer than the actual ambient temp, & above the temp that triggers "Freeze".

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1 Answer

I have an RP 2100 pool heater and the minimum temperature set point is 65 degrees. Every time the pool/spa temp falls below 65 degrees, the heater automatically turns on. How can I either disable this...


Do you have an electrical switch that turns this heater on/off?
Can the heater be unplugged?
Is the heater on a separate circuit breaker that can be shut off for the season?

Nov 27, 2010 | Raypak Rp2100 Pool & Spa Heater Lonox 407k...

1 Answer

My hot tub control panel keeps showing OH and the temp of the water is 99 degrees any sugestions?


It sounds like your circulation pump is not keeping up with the heater. Check for debris in the pump impeller. If this is 24 hour circulation pump, it is probably failing. New units are about $200 US

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02 grand prix temp rises over 210 then drops back down. heater


dear friend-there is a couple of things you can do to find the problem,when the engine is cold remove the radiator cap start the engine then look inside to see if the water is circulating,all so look for bubbles in the water,if there is bubbles,you might have a blown head gasket,if there is circulation the water pump is ok,then get the engine up to working temp,then feel both the top and bottom radiator they should be the same temp,if not then the termostat is at fault

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4 Answers

My Lars pool heater is leaking from within the casing.


Could also be a pin hole in the small copper tube that runs from the top of the heater to the thermostat. This has happened to me a few times. Small hole, but lots of water comes out. Get some 3/8" copper tubing and 2 compression fittings. It is easy to replace this tube. The only pain is that you have to take off the top of the heater to reach the end of the tube.

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1 Answer

Swimming pool solar heater panels freeze problem


Depending on the manufacturer, your solar panels may be replaced under warranty. Our installer says that once the panels begin leaking, they tend to deteriorate fairly rapidly. For example, three leaks the first year, 7 leaks the second year, 30 leaks the third year.

Many solar panels are warrantied against freezing, but that is not likely to be the future of the warranties, because they inevitably DO freeze and leak.

If there are just a few leaks, it is easier to fix them - a Fafco Solar panel repair kit can usually be bought from your installer for about $25.00.

If you turned the pump on to manual to circulate the water through the panels, that should prevent a freeze - but will cost you the electrical cost to run the pump.

Our experience has been that it is better NOT to drain the panels - we had many fewer leaks the years we have not drained the panels, despite occasional hard freezes in our part of California.

In addition, your rooftop installation should help radiate some heat up to the panels to keep them from freezing.

Check your warranty and get the panels replaced if there are more than a few leaks.

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1 Answer

Understanding how to use spa with freeze protection on


freeze protection will always be on. when you're done using the spa just push the heater/spa button. it will turn off. when ever the air temp drops below 37-39 degrees the air sensor will tell the system the it's getting cold and it will kick on the pump. you can change the it under settings menu if you want other pumps to come besides the filter pump

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