customer reported blower motor not running during heat mode. reported blower will run with the fan switch on tstat. tech confirmed this at tstat. tech went outside and jumped Rto G at ignition control. compressor, outdoor fan, and blower turned on without a call. tech unplugged contactor and allowed blower only run. X13 blower was running with 2.3 volts between each speed tap and blower common. common on blower had 15 volts to bare metal ground. tech jumped R to W. inducer started, hot surface ignitor glowed, but board did not send 24 volts to ga valve. it did intermittently send 15 volts to valve when it was between attempts to light. tech unplugged al blower leads and jumped transformer hot wire directly to each of the three blowers speeds turned on and off correctly after blower off delay. tech suspect x13 blower motor is operating properly, service history shows we have recommended replacing the four inshot burners and 1.5 pole 30 amps compressor contactor before. burners are