Why would water be coming out of the spa heater?

Answer 1

It depends on what type of heater it is. If you have a heat pump many times the water is just condensation from the air. A heat pump might make 15 gallons of water a day. You can test the water with a pool chlorine test strip and if it reacts it has a water leak from the pool and if it doesn't react then it is condensation and that is normal. If you have a gas heater usually it is a bad heat exchanger that was damaged by out of balance chemicals or PH issues. Then you have to see what part failed. It could also be a gasket, fitting etc. If the gas heater is over 5 years old I usually don't recommend replacing heat exchangers as they are about 1/2 the price of a complete heater.

Marcus

www.poolheatpumps.com

Answer 2

There could be a few reasons.

The heater has blown a gasket on the manifold.

Improper water chemistry and there is a hole in the manifold.

The water is too cold still and there is a lot of condensation on the initial heat rise. Until the water reaches a certain temp ~ equalizes ~ there will be heavy condensation. If this is the situation continue heating until temp that you want is reached. If one of the previous 2 answers above are chosen then shut the pump off ~ making sure it will not come on again until repairs are done. k

Answer 3

In some instances a plug or sensor located on the header of the heat exchanger is leaking but more then likely if the leak is severe the heat exchanger itself is broken open. There is no repairing a heat exchanger it will have to be replaced and depending on the age of the heater it might be wise to just by a new heater completely.

Answer 4

Either a bad gasket (the rubber between two parts of a component) or some part of the assembly isn't tight.