Rheem Furnace: Blower codes 66, 61 and 60 – what to look for

Blower codes 66, 61 and 60 - what to look for on a Rheem furnace: Quick sorting of the three ECM motor codes on the R96V control.

Homeowner with a furnace problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: (-)96VA040-115 (R96V / U96V) and (-)(-)96MDV040-115 two-stage variable-speed communicating furnaces

Common causes of blower codes 66, 61 and 60 - what to look for

• Restricted or confined ductwork, closed registers (66)
• Loose motor set screw (66)
• Blocked wheel, locked rotor or overheating motor (61)
• Minor internal motor fault (60)

How to fix blower codes 66, 61 and 60 - what to look for: step by step

1. 66 (overspeed / power limit) only shows in the first three minutes of blower operation: open registers, remove duct restrictions, and check the motor set screw is tight on the shaft.
2. 61 (motor cannot run): clear any obstruction from the wheel and find the cause of overheating; if it keeps failing the motor is likely damaged and needs replacing. Four dead-blower events in one heat call put the control in hard lockout.
3. 60 (motor able to run): low-level fault, operation continues; no long-term damage expected.
4. Static pressure should never exceed 1.0 in. w.c. on this ECM furnace.

If the unit shows an error code, look it up: Rheem Furnace codes

Models

96MDV040B30A96MDV060B30A96MDV070B30A96MDV085C50A96MDV100C50A96MDV115D50AR96VA0401317MSAR96VA0601317MSAR96VA0701317MSAR96VA0851521MSAR96VA1001521MSAR96VA1151524MSA