Product Overview

The Pentair MasterTemp Air Blower Replacement Kit is a genuine OEM service component for compatible 250,000-BTU natural-gas pool and spa heaters. The combustion blower draws air and gas through the mixer and delivers the mixture to the burner’s flame holder. When a technician confirms blower failure, this replacement supports a targeted repair rather than replacement of an otherwise serviceable heater. Pool Supply Depot offers this kit for contractors and service professionals maintaining compatible MasterTemp heating systems.

Ideal For

Pool service professionals repairing a diagnosed blower failure, contractors maintaining existing MasterTemp equipment, and pool owners purchasing the correct replacement component for installation by a qualified heater technician.

Key Features

• Genuine Pentair replacement specified for the MasterTemp 250NA natural-gas application.
• Combustion blower supports the air and fuel delivery required during heater operation.
• Model-specific replacement kit helps distinguish the correct repair component from similar-looking blower assemblies.
• Heater combustion application—not a standalone air blower for spa jets or water features.

Benefits

Replacing a confirmed failed blower can help restore heater operation while retaining other serviceable equipment. Selecting the manufacturer-specified component also reduces ordering mistakes associated with choosing parts by appearance alone. Professional diagnosis helps avoid replacing components unnecessarily.

Compatibility

Pentair lists this kit for MasterTemp 250NA natural-gas pool and spa heaters. It is not specified as a universal replacement for propane models or other MasterTemp heater sizes.

Before ordering, have your technician verify the heater’s identification plate, fuel configuration, and applicable replacement-parts diagram. Similar cabinet designs do not establish compatibility.

Installation or Upgrade Context

Installation and servicing must be performed by personnel qualified in pool and spa gas-heater repair. Follow Pentair’s service instructions and verify proper operation before returning the heater to use. This is a replacement component, not a heating-capacity upgrade or homeowner plug-and-play accessory.

What’s Included

One Pentair air blower replacement kit. The complete heater is not included. Have your technician confirm any additional seals, fittings, or service components needed for the repair before scheduling installation.

Specifications

Customer Q&A

Will this blower fit every MasterTemp heater?
No. Pentair specifies different blower kits by heater size and fuel type. Match the heater’s identification information before purchasing.

Will replacing the blower fix every ignition problem?
No. Heater startup depends on multiple components and safety controls. A qualified technician should identify the failed component before recommending replacement.

Can this kit convert a propane heater to natural gas?
No. This is a replacement blower kit, not a fuel-conversion kit. Fuel conversion requires the appropriate manufacturer-specified components and professional service.

Is this the blower that produces bubbles in a spa?
No. It serves the heater’s combustion system and does not supply air to spa jets.