As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2459: ON PUSH BACK, GOT THE NR 2 BLEED HOT CAUTION LIGHT. THE LIGHT STAYED ON ALL THE WAY BACK TO THE GATE AND AFTER SHUT DOWN. MAINTENANCE INTERROGATED CDS AND FOUND FAULT CODE 1701 'R BLD TMP SW'. C/W Q400 FIM TASK 36-10-00-810-802. REPLACED NR 2 BLEED OVER TEMP SWITCH IAW Q400 MM 36-11-16, PG 401-406. GROUND RAN AIRCRAFT WITH BLEED ON FOR SEVERAL MINUTES. OPS CHECK GOOD. NO CAUTION LIGHTS OR FAULT CODES NOTED. AIRCRAFT RETURNED TO SERVICE.