Question about Raypak 406A Digital ASME Natural Gas IID Heater009271

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What does the error code RVO stand for?

The unit is saying "RVO", then "CFH" and that the pool filter needs to be cleaned. Is there a water flow switch problem?

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Posted on Jan 02, 2017

  • 128 Answers

SOURCE: says clean filter strainer

Could be the pressure switch on the heater. Jump switch. If heater fires the switch is bad

Posted on Aug 23, 2009

john224
  • 1378 Answers

SOURCE: I have a Raypack RP2100. The heater will not turn

What is the pressure gauge reading and what is the pump horsepower?

Posted on Dec 29, 2009

  • 990 Answers

SOURCE: What does CFH mean on your pool heater and how do you fix it?

CFH is call for heat and the flame is about to come up. The banging you hear is the water inside the heater overheating to a boil. What you have is a water flow problem. If you have a valve bridging the water into the heater and the water going out be sure this valve is 80-90% closed so it forces water through the heater. If not you may have a problem inside the water manifold on the side of the heater. Their is a water by pass disc inside the header if stuck open will cause the same problem. Also check your baskets and filter to be sure they are clean.

Posted on May 07, 2010

  • 44 Answers

SOURCE: I have a five year

CFH means "Call For Heat", and SPK is "Spark". It sounds like you are running out of gas.Propane tanks need to have 30% in the tank for a heater to run correctly,and after they are filled you must bleed the air out of the line.If you have Natural gas,the gas line may be too small to supply enough gas to keep it running. NOTE...gas pressure MUST be checked with the heater running.

Posted on Sep 28, 2010

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1 Answer

Why do I get CFH but then no SPK?


CFH = Call For Heat
SPK = Ignitor is Sparking - attempting to ignite raw fuel

In a lot of cases, Pressure Switch opens up, CFH , is cancelled and therefor no ignition sequence.
try cleaning filter really good. If cartridge, may be time for an overnight soak.

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1 Answer

Low flow message on balboa 500z system


The low flow message on any Balboa means that you are having an issue with the flow of water through your heating unit. This can be caused by a few things.

  • Low water levels
  • Dirty filters
  • Something is impeding your water flow
Top up your water level and make sure it is where it needs to be, clean your filters or replace them, and check that nothing is impeding your water flow at the skimmer or water intakes.

Here is a link to water flow issues.
F2 Error Code Trouble Shooting

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1 Answer

Error code cfh


cfh is not an error code. it stands for "call for heat". back wash the pool filter. check continuity of pressure switch to ensure it is closing at proper pressure. jump pressure switch and if heater fires, there lies your problem

May 03, 2013 | Raypak Pool & Spa

1 Answer

I have model # p-m267a-nc-c it comes on I git error cfh then after a while i git hl2 and it wont heat after that. HELP Please TKS


"CFH" is Call for heat. That means your heater is trying to fire (not an error code). "HL2" is an error code which stands for "High limit #2". This error means the water in the heat exchanger is too hot,and the heater shuts itself down to prevent damage. Most common causes are poor water flow .Make sure the correct pump is running,and you have at least 10psi on the filter gauge. also be sure that the bypass valve is at least 1/2 way closed.The Bypass valve is located on the return line after the filter just passed the first tee.

Oct 12, 2010 | Rheem 266K to 399K BTU Swimming Pool...

1 Answer

Rheem digital gas pool heater fan code


The Fan code would indicate a problem with the combustion air blower. The is a pressure switch to indicate there is sufficent combustion air, and if not then unit shuts down. Either the fan isn't running, or there is an obsturction in the fan or exhaust piping, preventing enough air flow.
cfh would be call for heat, which would be a normal display when water temp is below setpoint
See the link below for a manual. Once you open the page look on lower right side for documents, then install manual
http://www.rheem.com/product.aspx?id=2388EEB7-3DEC-4601-AE76-EC7A07F17630

Jul 04, 2010 | Solar Rheem Gas Fired Pool & Spa Heater...

1 Answer

What does CFH mean on your pool heater and how do you fix it?


CFH is call for heat and the flame is about to come up. The banging you hear is the water inside the heater overheating to a boil. What you have is a water flow problem. If you have a valve bridging the water into the heater and the water going out be sure this valve is 80-90% closed so it forces water through the heater. If not you may have a problem inside the water manifold on the side of the heater. Their is a water by pass disc inside the header if stuck open will cause the same problem. Also check your baskets and filter to be sure they are clean.

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4 Answers

Just started our 8110 for year number 2. We are getting nothing but code 90. Tried cleaning, made sure all flow hoses were correct, check the hinge on the flow, all good. Still code 90! Went to buy a...


You problem is not the salt unit, your problem is PUMP related. You are getting good enough water flow. Check the pump as well as the filter. remove the filter cartridge and try the system without it. If the problem goes away then wash your filter and retest. If the problem comes back replace the filter cartridge. If the problem remains without the cartridge in place, you have a blockage in the plumbing which is preventing proper water flow.

Apr 03, 2010 | Intex Automatic Salt Water System for ...

2 Answers

Rheem model p-m266a-en-c digital gas pool heater runs, shuts down


CFH is call for heat not sure what spk is, but will find out and let you know.

Jul 05, 2009 | Solar Rheem Gas Fired Pool & Spa Heater...

2 Answers

"LO" error code on new H400FDN heater


it is low water pressure sensed, unit will not start unless pump is working

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