Takagi T-H3-DV - Venting Instructions; General Venting Instructions

TROUBLESHOOTING
TROUBLESHOOTING
On-Demand Water Heater Service Handbook for 240, 340 & 540 Condensing Models • 13
ERROR CODE GREEN LED ON
COMPUTER BOARD
SYMPTOM OR ISSUE 
 Five Flashes Abnormal exhaust
temperature (Indoor
model only)
.
 Five Flashes Imperfect
Combustion
.