System Error Codes Heater Error: Heater Error H05: Center Heater Temperature Error Problem Description: Temperature read by the Center Heater is abnormal ( lower than -10 o C or higher than 70 o C) . Corrective Action: Try the following: „ Make sure that the Heater Relay Assembly is connected correctly to the Center Platen. „ Replace the Heater Relay Assembly ⇒ Page 8-46 . „ Replace the Center Platen ⇒ Page 8-33 . Heater Error: Heater Error H06: Front Heater Time-out Error Problem Description: The temperature of the Front Heater does not reach the preset temperature even after 15 minutes . Corrective Action: Try the following:
„ Make sure that the Voltage alternation switch located at the back of the Printer is set correctly to the AC voltage being used. „ Make sure that the Fuse (F2) on the Heater Relay Assembly has not blown. If the fuse has blown, replace it. „ Make sure that the Heater Board is connected correctly to the Relay Board via the Relay Cable. „ Make sure that the Heater Relay Assembly is connected correctly to the Front Heater. „ Replace the Heater Relay Assembly ⇒ Page 8-46 . „ Replace the Front Heater ⇒ Page 8-29 . Heater Error: Heater Error H07: Rear Heater Time-out Error Problem Description: The temperature of the Rear Heater does not reach the preset temperature even after 15 minutes .
Corrective Action: Try the following: „ Make sure that the Voltage alternation switch located at the back of the Printer is set correctly to the AC voltage being used. „ Make sure that the Fuse (F2) on the Heater Relay Assembly has not blown. If the fuse has blown, replace it. „ Make sure that the Heater Board is connected correctly to the Relay Board via the Relay Cable. „ Make sure that the Heater Relay Assembly is connected correctly to the Rear Heater. „ Replace the Heater Relay Assembly ⇒ Page 8-46 . „ Replace the Rear Heater ⇒ Page 8-31 . 2-16 HP Designjet 9000s Series Printer Service Manual