System Error Codes Heater Error: Heater Error H08: Center Heater Time-out Error Problem Description: The temperature of the Center 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 Center Platen.
„ Replace the Heater Relay Assembly ⇒ Page 8-46 . „ Replace the Center Platen Heater ⇒ Page 8-33 . Heater Error: Heater Error H09: Operation Panel Switch Error Problem Description: The specified switch is not pressed for 30 seconds or more when the diagnostics that verifies the switch action is executed. Corrective Action: Try the following: „ Replace the Heater Relay Assembly ⇒ Page 8-46 . Problem Description: This error occurs when the diagnostics for the AC Relay is executed. Heater Error: Heater Error H10: Zero Cross Error Corrective Action: Try the following:
„ Make sure that the Heater Board is connected correctly to the relays on the Heater Block Assembly „ Make sure that the Heater Board is connected correctly to the Relay Board via the Relay Cable. „ Replace the Heater Relay Assembly ⇒ Page 8-46 . HP Designjet 9000s Series Printer Service Manual 2-17