Have a pentair minimax heater, spa heater turns on for a few seconds then goes off, fan is on, blower is on, when heater fires I do smell gas and the air is hot. Might charge under $500 to install. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). Bought the house 2.5 years ago. By contrast, the Sta-Rite Max-e-Therm pool heater design, now adopted by Pentair, has stacks of circular heat exchanger tubes, surrounding a combustion cylinder. It doesn’t sound like the heater is even trying to kick on. It continuously bounces between pool and spa. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. Heater is Pentair Mastertemp 200, installed May2017. Take a closer look at where the water originates. This heater can operate on either propane or natural gas. We have a Pentair 300 for both spa and pool heating. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. Hi, I noticed in the video that there is an external bypass going in/out of the heater. MASTERTEMP® HEATER (CONT’D) WATER SYSTEM REPLACEMENT PARTS Item Part No. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. Also could possibly have circuit board problems. I sent the following on May 23, but received no reply/advice. I only own a pool. Even the new MasterTemp aboveground pool heater has the same design, and the same troubleshooting procedure. I tested it at max speed (I think that was 3450 but the red light was still on. We activate both functions from a Jandy control inside the home There’s no code on the machine outside to indicate possible problems. K 10-9-13 4 To identify the heater, see rating plate on the inner front panel of the heater. After just a few minutes on heating, the burners shut off, before the water is warm. The burners on this type of MasterTemp/Max-e-Therm heater are quite unique from previous generation pool heaters. Blower is not ac … read more Condensation is normal when the water is cold. The 2nd is after modified the 3-port valve to the return lines. Is enough water getting into the heater? Is this normal? Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. Hi,e repl Also check that the blower comes on. Sure signs of damage include burn marks, cracks and melted components. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. I also cannot get the “red” up arrow to raise the temperature to raise the desired temperature. Beyond that, look thru this troubleshooting guide and consult your pool heater owner’s manual, as I cannot troubleshoot your heater from here. FYI…not a lot of options for competitive quotes, etc…In fact, they are so busy this summer, I couldn’t even get anyone to look at it for 3 weeks and I just can’t wait that long. The manuals and guides are organized by equipment category. Can you give some thought? I think our heat exchanger corroded last summer. They have a have an SF code for Sensor Failure. So I’m very happy. The Burner System of the MasterTemp/Max-e-Therm heaters is one single burner, called the Flame Holder, shown right. It’s a fun combination of plumbing, wiring and gas. My 9 year old heater was acting up, would fire and shut itself off repeatedly. And at that time there was no issue with the heater. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. Hello I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. Something you can try yourself is to simply pull both connectors off, then re-attach them to the pressure switch. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. Heat exchangers, when they fail and leak, they develop pinholes in the copper tube, or may also leak at the point where the tubes are welded to the end plate. Still got E01 code. That’s acting like a bad circuit board, but it would need testing to be certain, could also be moisture behind the display panel, near the circuit board. Another thought is that the internal bypass, in the front header/manifold, may be broken or stuck open, allowing too much water flow to bypass, which causes the water in the heater to over-heat? And, while they are off, you may also try holding the wire and give the connector a light pull to make sure the crimp on the connector is good. Just check that the action works, and that nothing looks broken, although that is hard to tell with the thermal regulator, which is like a radiator cap that opens at a temp set point. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? The Pentair MasterTemp pool heater adopted the sealed combustion chamber with controlled exhaust design. Sta-Rite MAX-E THERM pool and spa heaters High efficiency with a compact modern design. When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. Frank. The r13, r14 etc is the software revision number. Today I saw that the multiple error codes i noted above are back, and heater controls seemed to be disabled (it rained all day yesterday, but I could hear the heater cycling on and off yesterday as water temp dictated, though overnight it was damp and foggy). in 1995. It is a sfs code, but with no e05 error code. This is accessed thru the end cap, two bolts on the side of the header. Gentlemen, Then got AFS light on control board . Filter Cartridge Replacements Find the filter cartridges for your swimming pool, browse our selection of replacements for Gary, the flow and pressure switch, which sensor pressure, a proxy for flow, is the first place to look.Make sure the pump is pushing as much water as possible, into the heater. The exhaust pipe is leaking water. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. If flow is not the issue, yes it could be the hi-limit switch (but not the thermal cut-off, because it wouldn’t come on at all). The LED on the back panel indicated HLS. Pentair Heater MasterTemp High Performance Heater Brochure (4 pages, 0.33 Mb) Pentair Heater MasterTemp High Performance Heater Operation & installation manual (56 pages) 9 It worked well as usual, heated water to 85F as commanded. Hi Davy – I live in Maine, so very short pool season. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Looking like might be bad control board? It is being practiced by thousands of pool owners just like you. MASTERTEMP® Pool and Spa Heater Installation and User’s Guide Rev. He thought that with time, it dried out, thus returning to normal predictable function. Pool Supplies and Equipment for for low prices with excellent customer service. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Here are the video links. Friday evening we went to heat the spa, only to find that the temp did not rise after 15 minutes. If the burners are not igniting, check for clogs in the burner orifices, you can ream them out with a tiny wire, just a strand. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? My heater also powers up, displays lights, without anyone touching it. Thank you for your time and response. I think it’s a bit on the high side. Hi James, normally in spa mode 2480. Installation was extremely easy if you know anything about the workings of a pool filter and heater system layout. The air space above the burners heats up, which heats the copper finned tubes laying on the top of the combustion box. We have to go under the pool where the equipment is located to raise the spa temperature to a desireable de … read more I'll email the builder and call the Pentair's rep in the morning. It involves unbolting and removing the door panels, accessing the control panel board on the underside of the top cover, and locating the yellow button on the corner of the control board. Also, if you Hot Tub Covers & Year-Round Outdoor Spas – Cover Smart. Could the problem be with the flow or pressure sensors? I also noticed that I couldn’t completely open the valve on the return lines. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. Still have the power light lit but no other lights are lit. The biggest fear about the heat exchanger is that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. I intended to clean the filter soon since it had been awhile, so early the next day I took it apart. Pentair pool heaters come from the legacy of the Purex-Triton Minimax heater, when Pentair purchased the Purex company. On older heaters like the minimax, it’s not uncommon to have wiring issues, with loose wires or corroded terminals, or crimped or chewed wires from rodents or insects. MasterTemp® heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. we have a Pentair mastertemp 400K; We just had it installed last fall.