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Rheem P-M206 - User Manual

Rheem P-M206
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INSTALLATION & OPERATING
INSTRUCTIONS
Gas-Fired
Pool & Spa
Heater
Catalog No. 6000.59X Effective: 08-25-11 Replaces: 04-26-11 P/N 241236 Rev. 25
WARNING: If these instructions are not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from a neighbor's phone. Follow the gas sup-
plier's instructions.
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or
the gas supplier.
This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future
reference.
Atmospheric Models
206A, 266A, 336A & 406A
Lo NOx Models
207A, 267A, 337A & 407A
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.

Table of Contents

Other manuals for Rheem P-M206

Questions and Answers

  • J
    James PerkinsAug 17, 2025
    What to do if my Rheem Other heater keeps going on and off?
    • O
      Olivia WrightAug 18, 2025
      If your Rheem Other heater is turning on and off repeatedly, the issue might stem from several factors. A dirty filter could be restricting water flow, so start by cleaning or replacing it. Also, ensure the water level in your pool is adequate and adjust the external bypass setting. Finally, check and adjust the pressure switch if needed.
  • T
    Tracy WhiteAug 20, 2025
    Why does my Rheem Other take so long to heat the pool?
    • C
      Christina DonaldsonAug 20, 2025
      If your Rheem Other is taking too long to heat your pool or spa, consider these potential causes. First, verify that the heater is appropriately sized for your pool by calculating its heating capacity or referring to the heater sizing chart. Ensure the filter runs for a sufficient duration by resetting the time clock. Also, a dirty filter can impede heating efficiency, so clean it. Finally, an undersized gas line or meter could be the culprit; refer to the installation instructions for guidance.
  • J
    jknightAug 22, 2025
    How to fix a whining noise in my Rheem Other?
    • J
      jasmine78Aug 23, 2025
      If your Rheem Other is making harmonics or a whining noise, several factors could be responsible. The U.G. may be inoperative; check its movement by placing it in hot water (110°F or higher), and replace it if there's no movement. Debris or restrictions in the system or gas line could also be the cause; locate and remove any obstructions, flush the system, and clean the gas line. Low flow due to scale forming in the heat exchanger is another possibility; clean the heat exchanger and check the pool's pH and total alkalinity.
  • K
    Katrina PatelAug 25, 2025
    Why is my Rheem Other producing soot?
    • T
      Terry GoodmanAug 26, 2025
      If your Rheem Other is experiencing sooting, several factors could be the cause. High flow rates can contribute; reduce them by adding a manual bypass valve and adjusting it until the heater outlet water temperature is between 105°F and 110°F. An inoperative U.G. may also be responsible; check its movement in hot water (110°F or higher) and replace it if necessary. Air starvation or improper venting can also lead to sooting; refer to the installation instructions for guidance. Lastly, insects or debris clogging the burner intake ports could be the issue; clean the burners to resolve this.
  • I
    Isaac HansonAug 27, 2025
    What causes pilot outage in Rheem Other?
    • S
      Shelly JacksonAug 28, 2025
      If your Rheem Other is experiencing a pilot outage or a 'Weak Flame' signal, it could be due to a few reasons. Low gas pressure might be the issue, so try adjusting the gas pressure. A restricted or dirty pilot can also cause this problem, so clean the pilot and/or electrode. If the pilot generator is weak, consider replacing it.
  • D
    Dr. Brittney KimAug 30, 2025
    How to prevent scale in Rheem Other exchanger?
    • J
      Jeffrey PetersAug 30, 2025
      If liming or scale is forming in the heat exchanger of your Rheem Other, the cause might be related to the pool water; consult the Water Chemistry guide. Also, too much water bypassing can lead to scale formation; inspect the bypass for movement and replace it if there's no movement. If the U.G. isn't functioning, replace it if it doesn't move when heated.
  • K
    Kyle RamosSep 1, 2025
    Why is the flame yellow on my Rheem Other?
    • E
      erik78Sep 1, 2025
      If your Rheem Other has a yellow, lazy flame, it could be due to low gas pressure; try adjusting the gas pressure. Alternatively, insects or debris might be clogging the burner intake ports, so clean the burners.
  • J
    James TurnerSep 4, 2025
    What does “Fan Lockout” signal mean on Rheem Other?
    • C
      Charles HarveySep 4, 2025
      If the combustion fan in your Rheem Other isn't running and you're seeing a 'Fan 5 min Delay' or 'Fan Lockout' signal, the issue could be with the fan relay; consider replacing it. The fan itself might have a loose connection or a failed motor. A burned motor due to incorrect wiring could also be the problem, in which case you should replace the blower. Finally, the air pressure switch might need replacement.
  • K
    Kellie GarciaSep 7, 2025
    Why is my Rheem Other outer jacket so hot?
    • K
      Katherine BrownSep 7, 2025
      If the outer jacket of your Rheem Other is very hot and the paint is blistered, it could be due to a broken refractory caused by shipping damage or improper combustion; replace the refractory panels. Excessive sooting of the heat exchanger could also be the cause; determine the reason for the sooting and correct it.
  • Z
    Zachary HannaSep 9, 2025
    Why is my Rheem Other gasket brittle and leaking?
    • M
      michael38Sep 9, 2025
      If the gasket is brittle and leaking and the Rheem Other heater continues to run after the pump shuts off, it might be due to refractory damage, so replace the refractory. Alternatively, the heater might be sooted; determine the cause of sooting and correct it.

Summary

Owners Operating Instructions

Start-Up Procedures

Essential steps for safely starting the heater.

Lighting and Shut-Off Procedures

Detailed instructions for lighting and turning off the heater.

Water Chemistry Management

Maintaining optimal water balance for heater longevity.

Installation and Setup

Receiving Equipment and Specifications

Checking equipment upon arrival and understanding unit specs.

Installation Requirements and Clearances

Safety, code compliance, and spatial needs for installation.

Venting and Gas Supply Installation

Proper installation of vent piping and gas connections.

Plumbing and Electrical Connections

Guidelines for water connections and electrical wiring.

Servicing and Maintenance

Component Location and Identification

Identifying key service points on the heater.

Control Operation and Adjustments

Setting temperature, modes, and programming features.

Status, Diagnostics, and Fault Codes

Interpreting operational status and error messages.

Component Maintenance and Replacement

Procedures for removing and servicing key parts.

Lo NOx Specific Servicing

Operation, startup, and maintenance for Lo NOx models.

Troubleshooting Guide

Mechanical Troubleshooting

Diagnosing and resolving mechanical problems.

Electrical Troubleshooting

Diagnosing and resolving electrical issues.

Replacement Parts Catalog

Atmospheric Heaters Parts List

Catalog of replacement parts for atmospheric models.

Lo NOx Heaters Parts List

Catalog of replacement parts for Lo NOx models.

Rheem P-M206 Specifications

General IconGeneral
BrandRheem
ModelP-M206
CategorySwimming Pool Heater
LanguageEnglish

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