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Question posted by Kmccoy317 on February 11th, 2016

No Pilot Sensed Ignition Lockout

not out of propane, pilot valve cleaned and not clogged, flame not even turning on so its not the sensor. Could it just be a bad valve

Current Answers

Answer #1: Posted by techyagent on February 14th, 2016 5:39 AM
This answer was accepted by the poster of the original question.
techyagent

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Ok, then that's going to be a problem with the temp sensor itself, which is the small metal rod mounted down on your pilot. It's there to pick up the flame and send a signal to the control board to keep the pilot lit and the valve open. If the sensor is bad or corroded it will give you that error. Normally if the sensor is just dirty, the heater will still fire up but then immediately go out on you.


The only other possibility is the circuit board itself, which is what this is beginning to sound like. If it's going directly to ignition lock out and isn't even trying to fire up, it's going to be a problem with the circuit board itself. Now there is only one other thing you could try and that would be a board reset. If you cut power to the heater, then remove the top access panel and lean it out towards you, you'll see the backside of the circuit board. On the board is a reset button that will clear the boards memory and fault codes. Push the button in and then try the system again to see if that solved the issue, if not, I'm afraid you're down to the board as the cause of the problem.

Thanks


Techygirl

Related Rheem P-M406 Manual Pages

Brochure - Page 2

... valve ensures smooth turn-...Pilot Ignition The Rheem Digital use this function on our residential pool heaters. No need should ever arise. Every piece of a heater. Underneath the tough, yet beautiful finish, you when the water is equipped with no " Hard Light" to monitor and measure the pilot flame signal. Rheem engineered the Unitherm Governor specifically for pool and spa...
Operating Instructions - Page 1

... manual should be performed by a qualified installer, service agency or the gas supplier. do not use gasoline or other appliance. INSTALLATION & OPERATING INSTRUCTIONS Gas-Fired Pool & Spa Heater Atmospheric Models 206A, 266A, 336A & 406A Lo NOx Models 207A, 267A, 337A & 407A WARNING: If these instructions are not followed exactly, a fire or explosion...
Operating Instructions - Page 2

... ** In salt water chlorinated pools, the total TDS can be as high as a guide for your water. A check valve should be installed between the ...20, Illustrated Parts List on page 34. Additions: Control Lockout instructions on pages 48-55. The following : Changes to...warranties) For your health and the protection of the pool or spa water should be chemically balanced. Rev. 25 reflects the...
Operating Instructions - Page 3

... Weather Operation 38 Flame Roll-Out Safety Switch 9 Winterizing the Pool & Spa Heater 38 High Limits 10 PART TWO 39 Pilot Safety INSTALLATION & SERVICE INSTRUCTIONS 39 Burner Tray Removal (ATM) 10 SECTION 1 39 Gas Valve Removal (ATM) RECEIVING EQUIPMENT 39 Main Burner and Orifice Removal (ATM) 11 SECTION 2 39 Pilot Removal and Cleaning GENERAL SPECIFICATIONS 40 Heat...
Operating Instructions - Page 4

...panel of safe and reliable pool/spa water heating. It is filled with millivolt or electronic ignition. Keep heater area clear ...from combustibles, flammable liquids and chemicals. BEFORE START-UP BURNERS Clean main burners, combustion fan (if equipped) and air louvers...contains more details about the use of toggle switch to turn the heater On and Off. WATER Water must be ...
Operating Instructions - Page 7

...(38°C) is interrupted. MILLIVOLT PILOT BURNER FLAME A yellow or "floating" flame indicates restricted air openings or incorrect...pools or hot tubs. 6. spa or hot tub thermostats may err in drowning. 3. Should this manual). 2. CAUTION MAIN BURNER FLAME Elevated water temperature can be hot. Spa... occur, shut the heater off the gas valve when water flow to verify that water supply...
Operating Instructions - Page 8

... on the filter. POOL & SPA WATER CHEMISTRY Chemical imbalance can damage the heater and void the warranty. 2. If the mineral content and dissolved solids in the skimmer. AUTOMATIC CHLORINATORS AND CHEMICAL FEEDERS All chemicals must feed downstream of non-use steel wire brush. 2. A check valve should be dirty. DO NOT clean the burners with...
Operating Instructions - Page 9

... opposite water piping to gain access to maintain water temperatures just above freezing or for the winter. The heater is a...Turn off gas valve, manual gas valve, and electrical supply to drain. 9 Open drain plug located on return header. When temperatures are reached. Open drain plug on the inlet/outlet header, (under water pipes). COLD WEATHER OPERATION WINTERIZING THE POOL & SPA...
Operating Instructions - Page 10

... flange for gas line. 9. Bonding lug with "O" rings (2) 2. can also be reviewed thoroughly before installing your pool/spa heater. These items are any questions that this manual be found inside a box in the carton with mounting screw....the display Model & Serial No. Pressure relief valve 7. 2" CPVC adapters (2) 8. See below for external damage to the carrier immediately.
Operating Instructions - Page 23

... to install a pressure relief valve. if cold, open bypass. Do not overtighten. Install pressure relief valve hand tight plus 1/2 turn. It also serves to eliminate...Pool/ Spa From Pool/ Spa AUXILIARY BYPASS VALVE (DO NOT USE GATE VALVE) AUXILIARY BYPASS VALVE ADJUSTMENT To set bypass: With clean filter, adjustment is provided in the Polymer header for installation of a pressure relief valve...
Operating Instructions - Page 24

...be located so that the control panel will then display sensed water temperatures downstream of the primary heating system, rather than...pool or spa. The outlet side of the heater inlet pipe in series (Salt generators and chemical feeders must therefore be glued directly into header unions (Standard models only). 24 CAUTION: An additional source of the heater; Be advised that any valves...
Operating Instructions - Page 33

.... SUPPLY VOLTAGE INDICATOR Operation In the POOL or SPA modes, the actual water temperature is above the setpoint, "Water Temp" will continue to operate normally while in chronological order. The order of times the pilot valve has been powered. The second line of less than 4 indicates a weak flame signal and may be adjusted using a bar...
Operating Instructions - Page 34

... Refer to step one above to step one above access into the program screen. NOTE: Both the POOL and SPA setpoints will be programmed. Press and hold both POOL and SPA maximum temperature settings will not clear the lockout. Enter the PIN that power cycling will be set for 5 seconds. Locate the Program Mode button...
Operating Instructions - Page 35

..., replace board if fault does not clear. Pilot flame lost 4 times within same heat Fan Lockout demand cycle, power must be cycled to display a variety of your pool or spa thermometer. Ignition Failure (Propane Tab Not Broken) Alternating with "Main Ign Failure" - Ign 6min Delay (Propane Tab Not Broken) Alternating with "No pilot sensed" - Due to the circulation characteristics of...
Operating Instructions - Page 41

...turn on, pilot gas valve will shut down and blue tips should become visible. ELECTRICAL Be sure that is proven, the blower will be reset by a service technician after any over 110°F) and watch for proper operation. BLOWER ADJUSTMENT This Lo NOx pool...to call for heat, the ignition system, consisting of an electronic spark module, gas valve and pilot system, is blue and ...
Operating Instructions - Page 43

... clogging burner intake ports Reduce by some states to heat pool or spa Under-sized heater Filter not running long enough Dirty filter Gas line or meter undersized Calculate heating capacity of sooting and correct. Adjust manual bypass valve until heater outlet water temperature is between 105°F and 110°F. Pilot outage or "Weak Flame...
Operating Instructions - Page 44

... POOL OR SPA HEATER ELECTRICAL CHECK WITH MILLIVOLT GAS VALVE CAUTION: For qualified service personnel only. 1. Gas valve must be in pilot output Jump across pressure switch terminals If main burner fires, remove jumper If main burner does not fire, remove jumper Clean filter Jump across thermostat If pilot burner stays on gas valves If main burner fires...
Operating Instructions - Page 45

...valve closes, recheck temperature controller and wiring; NO YES TURN GAS SUPPLY ON PILOT BURNER LIGHTS? Pull ignition lead and check spark at module; Lockout is used on PC board. pilot gas valve...SPARK ACROSS IGNITER/SENSOR GAP? Spark Okay? if not, replace gas valve. 45 If no voltage, replace module. • Check electrical connections between PC board and pilot operator on...
Operating Instructions - Page 46

... MODE switch to select "Pool" or "Spa" Push Temp arrow to scroll to valve MV voltage. (Replace valve.) 46 YES "Heating" will display briefly "Spark" Flame icon displayed and flashing? Reference to safety loop is controlling the heater) Note: Disconnect the remote by turning the remote function off. Sensor resistance at pilot valve. Check power at various temperatures...
Warranty - Page 1

... of Rheem Manufacturing Company (Raypak) warrants to , freeze-ups, operating the heater with a pool or spa by the manufacturer. 10. performance problems caused by improper sizing of nature, accident, fire, ... cabinet door off, having flow restrictions or obstructions between the heater outlet and the pool/spa, or not maintaining a proper chemical balance (PH level must be between 7.4 and...

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