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Rheem P-M406 Support Question

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Question posted by Jnappi on June 23rd, 2013

The Pilot Won't Light And After It Try's It Shows Lo On The Display,

Can u tell me what it means?

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Related Rheem P-M406 Manual Pages

Brochure - Page 2

...pool and spa heaters. Rheem engineered the Unitherm Governor specifically for fans to combat drafting problems. This heater is engineered to decipher. Sp a S e t 104F No Pilot Sensed Remote-Compatible Re m o t e Po o l 104F Wa t e r Te m p 69F The Rheem Digital is compatible with its exclusive low-profile design. The display clearly shows..." Hard Light" to -pilot ignition system...meaning...

Operating Instructions - Page 1

... installer, service agency or the gas supplier. 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... SMELL GAS: • Do not try to the heater or in legible condition and kept adjacent to light any appliance. • Do not touch any other appliance.

Operating Instructions - Page 3

...Lighted Pilots IID 36 Remote Control Installation and Operation 7 After Start-Up 36 Remote Operation 7 SECTION 2 36 Activating the Remote CAUTION 37 Remote Control Wiring 8 SECTION 3 37 2-Wire Remote Control MAINTENANCE & CARE PROCEDURES 37 3-Wire Remote Control 8 Pool & Spa... 14 Florida and Texas Building Codes 41 Lo NOx Pool Heaters 15 Indoor Heater Installation 41 Operation ...

Operating Instructions - Page 5

... floor because some gas is heavier than air and will settle on the lowest setting. 3. If it . When lighting the pilot, follow these instructions exactly. Be sure to the next step. 7. do not try to clear out any part has been under water. Never use this appliance if any gas. SHUT-OFF PROCEDURE...

Operating Instructions - Page 6

... not operate, follow the instructions "To Turn Off Gas To Appliance" GAS INLET and call the fire department. Do not try to light the pilot by hand. BEFORE OPERATING, smell all electrical power to light any appliance. *Do not touch any phone in or turn by hand, do not use tools. WHAT TO DO...

Operating Instructions - Page 8

... is not running dry. POOL & SPA WATER CHEMISTRY Chemical imbalance can... and pilot burner of the air openings. Yellow flame means restriction ...Try re-setting it may be full. See plumbing diagrams on the filter. Lifting or blowing flame indicates high gas pressure. If so, backwash or clean filter. (To tell... steel wire brush. 2. The Lo NOx burners and orifice areas should...

Operating Instructions - Page 26

...: 7/8" dia. BONDING LUG (OPTIONAL LOCATION) SWAY BRACE BONDING LUG (STANDARD LOCATION) LO NOx Wiring locations 26 The heater is supplied with the heater. ply. Remove and ...auxiliary control interface or power vent (D-2) wiring. The Electronic Intermittent Ignition Device automatically lights the pilot and main burners upon a call for further instructions if using a time clock/fireman...

Operating Instructions - Page 27

...the absence of local codes, with the latest edition of the power supply. For Lo NOx pool heaters attach a wire nut to each red wire independently. 120V ATMOSPHERIC HEATER SUPPLY... fireman's switch connection or using a switched GFCI power source, the heater could display false service indicators on the display panel if the pump is applied, damage to the red wire. Canadian Electrical Code...

Operating Instructions - Page 31

... Unitherm Governor Transformer SERVICING INSTRUCTIONS GENERAL LOCATION OF CONTROLS ATMOSPHERIC Drain Plug (Located in rear header) AFT Thermostat Circuit Board Roll-Out Switch Gas Valve Pilot LO NOx Drain Plug (Located in rear header) Blower Hose AFT Thermostat Circuit Board Roll-Out Switch (Manual) Blower Gas Valve Air Switch...

Operating Instructions - Page 33

... the number of on the upper front panel of times the pilot valve has been powered. Program button the pilot flame current using the UP or DOWN buttons. Press the DOWN...display shows the fault message. Refer to ten faults in the Service Menu. Temp Buttons If the heater is above the setpoint, "Water Temp" will alternate with "No Demand." SUPPLY VOLTAGE INDICATOR Operation In the POOL or SPA...

Operating Instructions - Page 35

... operating No Demand Heat demand is satisfied The following conditions are displayed only while there Pool, Spa, and Remote modes when there are displayed in the pool or spa. Alternating with "No pilot sensed" - active fault conditions. MV Output Main gas valve output is sensed at the Lo NOx terminal on the operating conditions. Hi Limit 2 Fault High...

Operating Instructions - Page 36

... area, an electrostatic charge accumulates on the control panel allows you to select the desired pool or spa temperature. When connecting the heater to a remote system, identify whether it only provides a... enclosure for 3 to 5 seconds. The digital liquid crystal display (LCD) shows the actual pool temperature, operating status, and service codes (See examples below to properly install the remote ...

Operating Instructions - Page 39

... with a wire brush. 4. NOTE: If the heat exchanger is interrupted. Disconnect wires, pilot tubing and bleed line, if required. 3. The pilot burner must be lit. PILOT SAFETY - Reverse above procedure to be manually re-lighted to shut off gas supply to the lighting instructions provided on page 43). Replace inspection panel. Remove front door. 4. Reverse...

Operating Instructions - Page 41

... settle down . LO NOx POOL HEATERS The Lo NOx pool heaters are equipped with... a thermal cut-off device to the heater has proper overload fuse or circuit breaker protection, wire size and connections which comply with a non-petroleum based grease such as follows: a. Turn on some areas of an electronic spark module, gas valve and pilot...

Operating Instructions - Page 42

... and outwards. 5. Detach the air/gas manifold assembly from the burner hold- Reverse above procedure to the burner tray. 4. Remove front door. 4. Disconnect pilot wire from gas valve. 2. Lo NOx Horizontal Pilot PILOT REMOVAL 1. Reverse above procedure to blower box. 6. Remove (2) screws that mount anti-rotation bracket to reinstall. Remove (2) screws that mount the...

Operating Instructions - Page 44

... position. If left in place, they could cause the heater to pilot solenoid. Light pilot If pilot burner remains lit Jump across both "TH" wires from filter Replace pressure...gas pressure. Negative Red + Positive 2 Pilot Load (500mV± 100) Pilot generator connected to valve-Power applied to burn up. STANDING PILOT MILLIVOLT POOL OR SPA HEATER ELECTRICAL CHECK WITH MILLIVOLT GAS VALVE ...

Operating Instructions - Page 45

... valve. 45 ELECTRICAL - SYSTEM RUNS UNTIL CALL FOR HEAT ENDS? To reset, interrupt power to light. NO YES TROUBLESHOOTING ENDS NOTE: IF PC board goes into lockout, reset system. NO YES TURN GAS SUPPLY ON PILOT BURNER LIGHTS? pilot gas valve, flow switch etc. NO YES NOTE: Before troubleshooting, familiarize yourself with an ignition...

Operating Instructions - Page 46

... Water temp displayed? (pilot lit and rectified) NO YES • Check On/Off switch (under lid on digital circuit board. Sensor resistance at pilot valve. High limit switch. Rollout Sensor - "Ignition Lockout" "Ignition Failure" Ignition lockout. Ignition failure. NO YES Push MODE switch to select "Pool" or "Spa" Push Temp arrow to scroll to the...

Operating Instructions - Page 50

1-M 3-C 7-HM 3-HM 17-HM 5-HM 2-S 6-HM 6-C 14-HM 13-HM 2-HM 4-HM 9-S 4-S 16-HM 15-HM 3-M (OPTIONAL) 2-C 12-HM 18-HM 10-HM 8-HM 11-HM 9-HM 2-P 7-P 9-P POLYMER IN/OUT HEADER AND ACCESSORIES HONEYWELL IID ATMOSPHERIC PILOT 1-P 1-P 8-P 5-P 2-P 6-P 6-P 3-P 9-P HONEYWELL MILLIVOLT PILOT 4-P IID LO NOx PILOT 50

Operating Instructions - Page 55

...010312F 010313F 010314F 010318F 009505 010319F 010320F 010324F 013890F 013894F 010342F 010328F 009841 009837 010333F 011464F 010337 013886F LO NOx HEATERS CALL OUT J 1-J 2-J 3-J M 1-M 2-M 3-M 4-M 5-M 6-M 7-M 8-M 9-M 10-M 11-M 12-M 13-M 14-M P 1-P 2-P...Special-See Water Pressure Switch Adj. IID Low Nox Pilot Electrode Pilot Mounting Bracket Pilot Tube Hi Tension Wire IID Adapter Nut (Metric)...