As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI - FLIGHT 2300 - DE-ICE CAUTION LIGHT ILLUMINATED MOMENTARILY. INDICATED 30 PSI, THEN NORMAL. ALL BOOTS ON THE RIGHT SIDE STAYED INFLATED. RETURNED TO THE GATE. MAINTENANCE REPLACED THE PRESSURE REGULATOR VALVE. AIRCRAFT RETURNED TO SERVICE.