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MECH-BLOWER

Bradford White · RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System

Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System MECH-BLOWER Error Fix: Power Vent Blower Motor Failure

The power vent blower motor (exhaust fan) is not running or not reaching proper speed. The blower must operate and prove draft (via a pressure switch) before the gas valve will allow ignition. If the blower does not start, check for 120V power at the blower motor connector. Listen for a hum — a humming motor that won't spin may have a seized bearing or failed capacitor. Check the blower motor for debris blockage in the exhaust vent opening. The blower motor is typically mounted on top of the water heater and pushes combustion exhaust through PVC vent piping. Replace the blower motor assembly if it has failed.

High severity2 fixes available✨ Free fix available

Quick Answer

Error MECH-BLOWER on the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System means: Power Vent Blower Motor Failure. The top-ranked community fix is “Test and Replace the Power Vent Blower Motor Assembly” (hard difficulty, ~90 min, DIY cost: $20-$30). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · water heater

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many water heater repairs can be done safely at home, consider hiring a qualified technician if:

This is a high severity error — continued use may cause damage or a safety hazard
The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $350-$500.

Other Bradford White Models with Error MECH-BLOWER

RG2PV50H6N 50 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System

water_heater · 2 fixes

Other Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System Error Codes

1-FLASH

Normal Operation — System OK

2 fixes

2-FLASH

Thermopile Voltage Low

2 fixes

4-FLASH

High Temperature / ECO Trip

2 fixes

5-FLASH

Temperature Sensor Failure

2 fixes

7-FLASH

Gas Control Valve Electronics Failure

2 fixes

8-FLASH

Power Interruption / Loss of Pilot Signal

2 fixes

LED-OFF

No Power to Gas Control — LED Dark

2 fixes

MECH-ANODE

Anode Rod Depleted — Rotten Egg Smell or Corrosion

2 fixes

People Also Ask About Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System Error MECH-BLOWER

What does error code MECH-BLOWER mean on a Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System?

Error code MECH-BLOWER on the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System means: Power Vent Blower Motor Failure. The power vent blower motor (exhaust fan) is not running or not reaching proper speed. The blower must operate and prove draft (via a pressure switch) before the gas valve will allow ignition. If the blower does not start, check for 120V power at the blower motor connector. Listen for a hum — a humming motor that won't spin may have a seized bearing or failed capacitor. Check the blower motor for debris blockage in the exhaust vent opening. The blower motor is typically mounted on top of the water heater and pushes combustion exhaust through PVC vent piping. Replace the blower motor assembly if it has failed.

How do I fix error code MECH-BLOWER on my Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System?

The most successful fix is "Test and Replace the Power Vent Blower Motor Assembly" (hard difficulty, ~90 minutes). Estimated DIY cost: $20-$30. HomeMD has 2 community-ranked fixes for this error.

Is error code MECH-BLOWER on a Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System serious?

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Can I fix Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System error MECH-BLOWER myself?

Yes — the top-ranked community fix ("Test and Replace the Power Vent Blower Motor Assembly") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Adjustable wrench.

How much does it cost to repair Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System error MECH-BLOWER?

DIY cost: $20-$30. Professional repair typically costs $350-$500. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System have?

The Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System has 8 other known error codes, including: 1-FLASH (Normal Operation — System OK), 2-FLASH (Thermopile Voltage Low), 4-FLASH (High Temperature / ECO Trip), 5-FLASH (Temperature Sensor Failure), 7-FLASH (Gas Control Valve Electronics Failure), and 3 more.

Which other Bradford White models have the MECH-BLOWER error?

Error code MECH-BLOWER also appears on 1 other Bradford White model: RG2PV50H6N 50 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System have?

The Bradford White RG2PV40T6N 40 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System has 8 other known error codes:

1-FLASH — Normal Operation — System OK (2 fixes)
2-FLASH — Thermopile Voltage Low (2 fixes)
4-FLASH — High Temperature / ECO Trip (2 fixes)
5-FLASH — Temperature Sensor Failure (2 fixes)
7-FLASH — Gas Control Valve Electronics Failure (2 fixes)
8-FLASH — Power Interruption / Loss of Pilot Signal (2 fixes)
LED-OFF — No Power to Gas Control — LED Dark (2 fixes)
MECH-ANODE — Anode Rod Depleted — Rotten Egg Smell or Corrosion (2 fixes)

Which other Bradford White models have the MECH-BLOWER error?

Error code MECH-BLOWER also appears on 1 other Bradford White model:

RG2PV50H6N 50 Gallon 40,000 BTU Power Vent Gas Water Heater with Defender Safety System (water heater) · 2 fixes

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